/*
 * MIT License
 *
 * Copyright (c) 2023 北京凯特伟业科技有限公司
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package com.je.bpm.core.converter.converter.parser;

import com.je.bpm.core.converter.constants.BpmnXMLConstants;
import com.je.bpm.core.converter.converter.XMLStreamReaderUtil;
import org.apache.commons.lang3.StringUtils;
import com.je.bpm.core.model.process.Process;

import javax.xml.stream.XMLStreamReader;
import java.util.ArrayList;
import java.util.List;

import static java.util.Arrays.asList;

public class PotentialStarterParser implements BpmnXMLConstants {

    public void parse(XMLStreamReader xtr, Process activeProcess) throws Exception {
        String resourceElement = XMLStreamReaderUtil.moveDown(xtr);
        if (StringUtils.isNotEmpty(resourceElement) && "resourceAssignmentExpression".equals(resourceElement)) {
            String expression = XMLStreamReaderUtil.moveDown(xtr);
            if (StringUtils.isNotEmpty(expression) && "formalExpression".equals(expression)) {
                List<String> assignmentList = new ArrayList<String>();
                String assignmentText = xtr.getElementText();
                if (assignmentText.contains(",")) {
                    String[] assignmentArray = assignmentText.split(",");
                    assignmentList = asList(assignmentArray);
                } else {
                    assignmentList.add(assignmentText);
                }
                for (String assignmentValue : assignmentList) {
                    if (assignmentValue == null) {
                        continue;
                    }
                    assignmentValue = assignmentValue.trim();
                    if (assignmentValue.length() == 0) {
                        continue;
                    }
                    String userPrefix = "user(";
                    String groupPrefix = "group(";
                    if (assignmentValue.startsWith(userPrefix)) {
                        assignmentValue = assignmentValue.substring(userPrefix.length(), assignmentValue.length() - 1).trim();
                        activeProcess.getCandidateStarterUsers().add(assignmentValue);
                    } else if (assignmentValue.startsWith(groupPrefix)) {
                        assignmentValue = assignmentValue.substring(groupPrefix.length(), assignmentValue.length() - 1).trim();
                        activeProcess.getCandidateStarterGroups().add(assignmentValue);
                    } else {
                        activeProcess.getCandidateStarterGroups().add(assignmentValue);
                    }
                }
            }
        }
    }
}
